[N:1]1[N:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]2=[C:3]([CH2:10]O)[CH:2]=1.P(Br)(Br)[Br:13]>C(Cl)Cl>[Br:13][CH2:10][C:3]1[CH:2]=[N:1][N:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=12To the solution of pyrazolo[1,5-a]pyridin-3-ylmethanol (2) (50 mg, 0.338 mmol) in DCM (2 mL) was added PBr3 (36.58 mg, 0.135 mmol) at room temperature for 30 min. The reaction solution was used in the next step.
Wird geladen…